Insulator for heavy conductors.



, No. 877,804. PATENTED JAN. 28, 1908.

L. STEINBBRGER.

INSULATOR FOR HEAVY GONDUOTORS.

APPLICATION FILED APR. 17 1907.

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L. STEIN BERGER.

INSULATOR FOR HEAVY GONDUOTORS.

APPLIGATION FILED APR. 17. 1907.

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' the various parts'when ass'ern Insulator for Heavy LOUIS STEINBERGER, OFNEW YORK, N. Y'.

INSULATOR FOR HEAVY CONDUCTORS.

Specification of Letters Patent.

Patented Jan. 28, 1908.

Application filed April 17. 1907. Serial No. 368.744.

To all whom it may concern:

Be it known that I, LOUIS STEINB'ERGER, a

citizen of the United States, and a resident of the city of New York; borough of Brooklyn, in the county of Kings and State of New York, have inventeda new and Improved the following is a full, clear, and exact de-' scription.

. My invention relates to insulators for heavy conductors,. and more particularly to a type of insulator used upon electrically operated railways for supporting third rails.

Among the other objects of my invention are the following:

1 I. To provide a substantially saddleshaped ,insulator made practically in one piece;

II. To provide efiicient means for securing the, insulator to the railand readily detaching the same therefrom;

III. To provide means for facilitating the vertical movement of the track structure independently of the rail, thus allowing for depression of the cross ties and track without disturbing the third rail; I

IV. To take precautions a ainst loosening I %led in position V. To reinforce the strength of the insulator body'by embedding therein a metallic frame; I

VI. To provide various constructional details for improvingthe general efficiency of the third rail and the track structure immediately associated therewith VII. To provide a base. or support for the insulator having a hood or shield 1portion for the purposeof protecting the insu ator;(from the weather and from mechanical'injury).

Reference is to be had to the accompanying drawin s forming'apart of this specification, in which similar characters of reference indicatecorresponding parts in all the'figures.

Figure--1 is a perspective showing a fragmentaryirail'section as supported by my improvedinsulator, and the parts-occupying their normal relative positions; 2 1s an enlarged vertical section through the body of the insulator and its support, this view showin one of thekeysiised forjlocking the rail wit in the insulator body, and also s 0W ing fastening membersfor preventing rern0val of the key; Fig; 3. is a substantially central section through the insulator body and rail supported "thereby, .this' view show- 1 Conductors, of whiching the internal construction of the insulator body and also showing the means whereby rigid portionsof e track structure are permitted to move freely in relation to the rail and the insulator; Fig. 4 is a fragmentary section upon the line44 of. Fig. 2, looking in the direction of the arrow, and showing how the rail keys are fitted against opposite sides of the rail, so as to hold the same within the insulator, and a fastening member which is partly sunken into the keys'in: orderto prevent their removal Fi 5 is aperspective of the insulator removed Irom its supports and from the rail; Fig. 6 is a pers ective of one of the keys .used for locking t e rail Within the insulator; Fig; 7is a'pers' ective of-one of the fastening members used or preventing removal or displacement of the keys rela-' tively to the rail body and to the insulator; and Fig. 8 is a vertical section't rough a rail su ported by a slightly diiferentformof insu atoremploying only a single key for locking the rail relatively thereto.

' At 9 is shown a cross tie, and mounted thereupon is a bracket 10 provided at its 'upper end with a longitudinal head '11 having an opening 12. vided with two slots 13 which merge into the opening 12, as indicated in Figs. 2 and 3.

Bolts 14 extend through the head 1], as indi-- cated in Fig. 3. Each bolt is provided with a head 15 which is sunken into an angular aperture 17in the head 11. 'Each bolt 14 is threaded at one end and is fitted with a threaded nut 16, the latter being sunken into an openin 18. p

An insu atoris shown at 19 and is made up of a body of insulating material, refera l" electrosel, into which is embe ded a substantiallysaddle-shaped'frame 20. provided with upwardly projecting flanges 21inte al therewith, these flan es having vertica slots 22 parallel with eac other.

The insulator as-a whole is shown in Fig 5 and may be designated as a substantially saddle-shaped insulating member stren thened by an internal frame of metal, I he bolts 14 are threadedv through the slots 22 in the 'fianges'21,so that the insulator with all of theweight carried by it rests uponthebolts 14. and is free to move upward rel'ativ'el thereto within limits permitted by'the depth ofthe-slots 2-2 sulator 19 provided with sheds 2.3 for facilitating the; dripping of. moisture, *andalsogto decrease the amount. of surface. leakage.

This head His further pro The lower portion of the iIb' purpose 5f these fastening members may be portions 29.

better understood by reference to Fig. 2.

These fastening members are simply sprung into slots 30 in the keys and are spaced apartby a distance representing approximately the length of the insulator 19. Each fastening member 27 is provided with portions 28 having proper conformity to fit into the slots mentioned, and is also provided with bent When the fastening member is forced into position, the portions 28 are sprung into the relative positions indicated in Fig. 4, and thus grip neatly the keys 25, 26 so as to hold them firmly in relation to the rails and to the insulator.

To remove the insulator from the rail, the fastening members 27 are forced upward, the keys 25, 26 are withdrawn endwise, the bolts are removed from the head of the bracket,

and the rail 24 thereupon dro s out of the insulator. The insulator toget er with the bracket may then be removed.

In the form shown in Fig. 8 the rail 24 is supported by the insulator 31, these parts being in a great measure similar to the rail 24 and insulator 19. Instead of having two keys, however, only one key 32 is provided, and instead of a fastening member 31, a pin 33 is used for substantially the same purpose.

I do not limit myself to the use of any prescribed insulating material. I prefer, however, to employ the insulating material known in the art as electrose. Neither do I limit myself to the exact form nor to the recise arrangement of any or all of the parts herein shown *and described, as various changes may be made, which will readily occur to those skilled in. this art, without departing from the splrit or scope'of my invention.

claim as new and desire to secure by Letters Patent:

1. An insulator for heavy conductors;

comprising a substantially saddle-shaped body portion, provided with an openingfor receiving a rai and further provided with flanges projecting therefrom and having slots, a bracket provided with a head having.

slots into which; said flanges project loosely, and bolts threaded through said slots of said flanges and engaging said head so as to-sup port said body portion.

Having thus described my invention, I.

f'slia ed insulating membermounted within sai opening and movable vertically in rela- 120 tion to said supporting member, and means '2. The combination of a bracket provided with a head having an opening and also having slots merged into said opening, an insulator mounted loosely within said opening and provided with flanges extending loosely into said slots, said flanges beingprovided with slots, and bolts mounted upon said head and so as tosupport said insulator loosely from said bracket.

3. 'An insulator for "heavy conductors,

provided with an opening'for receiving a rail, and a metallic strengthening member following generally the contour of said body of insulating material and embedded centrally therein, for the purpose of strengthening the same.

4. An insulator for heavy conductors, comprising insulating body portion for supwit in said body portionand having. a flange projecting from said body portion for the purpose of supporting the same.

5. An insulator for heavy conductors, comprising an insulating member for holding a conductor, said insulating member being provided with a lurality of flanges of metal .projecting therefi'om and disposed parallel with each other along the general length of the conductor, for the purpose of supporting said insulating member and said conductor.

6. As an article of manufacture, a subing material receiving a rai and a strengthening member and embedded centrally within said mem er being provided with portions projecting from said member" of insulating. material for the purpose of sup orting the same.

7. An insu ator for heavy conductors, comprising a f substantially saddle-shaped member'for holding a rail, a key for engaging said rail and said substantially saddle-sha ed member, and a fastening member for holdin said key in a predetermined 'positionrelatively to said saddle-sha ed member.

An insulator for eavy conductors, comprising a supporting member provided upon its under side with an opening, a saddle- \for mounting within. said insulating member a rail having its tread portion dowhward. In testimony whereof I have signed my two subscribing witnesses.

Y LOUIS STEINBERGER. Witnesses:

WALTON HARRISON, EVERARD B. MARsnALL.

extending through said slots of said flanges comprising .a body of insulating material,

porting a rail, and a-substantially saddlesha ed metallic member embedded centrally stantially saddle-shaped member of insulat-f provided with an opening for of metal also substantially saddle-sha ed v name to this specification in the presence of of insulating material, said metallic member 1051 

